Table 2.
Ancillary Findings on CT – Comparing Epithelioid, Sarcomatoid, and Biphasic Subtypes
| Biphasic (N=17) | Epithelioid (N=97) | Sarcomatoid (N=11) | P-value | ||
|---|---|---|---|---|---|
| Volume Loss | 10 (58.8%) | 44 (45.4%) | 7 (63.6%) | 0.393 | |
| Calcified Pleural Plaques | 7 (41.2%) | 24 (24.7%) | 6 (54.5%) | 0.075 | |
| Local Invasion (Any Location) | 12 (70.6%) | 50 (51.5%) | 8 (72.7%) | 0.216 | |
| Chest Wall Invasion | 5 (29.4%) | 18 (18.6%) | 4 (36.4%) | 0.267 | |
| Diaphragm Invasion | 6 (35.3%) | 31 (32%) | 4 (36.4%) | 0.841 | |
| Mediastinal Invasion | 5 (29.4%) | 37 (38.1%) | 5 (45.5%) | 0.683 | |
| Vascular Invasion | 1 (5.9%) | 9 (9.3%) | 2 (18.2%) | 0.552 | |
| Pleural Effusion | None | 3 (17.6%) | 19 (19.6%) | 4 (36.4%) | 0.680 |
| Bilateral | 0 (0%) | 3 (3.1%) | 0 (0%) | ||
| Ipsilateral | 14 (82.4%) | 75 (77.3%) | 7 (63.6%) | ||
| Pericardial Effusion | 0 (0%) | 9 (9.3%) | 0 (0%) | 0.367 | |
| Pulmonary Nodules | 3 (17.6%) | 12 (12.4%) | 1 (9.1%) | 0.888 | |
| Lymphadenopathy (Any Location)a | 6 (35.3%) | 29 (29.9%) | 2 (18.2%) | 0.651 | |
| Mediastinal Adenopathya | 6 (35.3%) | 23 (23.7%) | 1 (9.1%) | 0.291 | |
| Ipsilateral Hilar Adenopathya | 2 (11.8%) | 9 (9.3%) | 1 (9.1%) | 0.866 | |
| Contralateral Hilar Adenopathya | 0 (0%) | 3 (3.1%) | 0 (0%) | 0.999 | |
| Axillary Adenopathya | 0 (0%) | 2 (2.1%) | 0 (0%) | 0.999 | |
| Max Short Axis Diameter of Adenopathy | 10 to 15 mm | 5 (83.3%) | 23 (79.3%) | 2 (100%) | 0.999 |
| 16 to 30 mm | 1 (16.7%) | 5 (17.2%) | 0 (0%) | ||
| > 30 mm | 0 (0%) | 1 (3.4%) | 0 (0%) | ||
| Presence of Internal Mammary Nodesb | 4 (23.5%) | 21 (21.6%) | 6 (54.5%) | 0.071 | |
| Presence of Supra-diaphragmatic Nodesb | 3 (17.6%) | 23 (23.7%) | 0 (0%) | 0.174 | |
| Distant Metastases | 0 (0%) | 1 (1.1%) | 0 (0%) | 0.999 | |
a
Adenopathy is defined as greater than 10 mm short axis.
b
Presence of any node regardless of size, including nodes less than 10 mm in short axis.